Hi. When i do FEA (like topology optimization), NX is only using 10-13% of CPU. Are there any settings to allow it to use more?
I have a 1month old PC withj win 7 and Intel i7 quad core CPU.
Hi, and thanks for your reply.
Ive read through the thread, and tried to use the nastran64L.exe as solver executable, but still only 15%ish CPU usage when doing topology optimization.
This might be a bit off-topic, but when i do topo-opt, NX says that element iterative solver (EIS) is not recommended. However, EIS solves the standard FEA much faster.
As you might understand, I am not very familiar with how NX uses resources. I know that Simulia Abaqus CAE has an option where you could specify how many cores you want to use and I was hoping for a similar option in NX.
Dear Magnusrm,
Click in the study name and select command "EDIT SOLVER PARAMETERS", and under NX NASTRAN Command keywords write PARALLEL=8, this will tell to NX NASTRAN solver to use the 8 cores of your CPU (if multithreading is disable use PARALLEL=4).
If you want to have permanently issued this command whern creating any study, simply go to to "FILE > UTILITIES > CUSTOMER DEFAULTS > SIMULATION > NASTRAN" and in SOLVER PARAMETERS > ADDITIONAL KEYWORDS enter PARALLEL=8, and you are done, OK?.
Best regards,
Blas.
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Blas Molero Hidalgo
Ingeniero Industrial
Director